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Extract from the Register of European Patents

EP About this file: EP4269531

EP4269531 - MULTIFUNCTIONAL WAX DISPERSANT FOR SUBTERRANEAN CHEMICAL APPLICATIONS [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  29.03.2024
Database last updated on 15.06.2024
FormerThe application has been published
Status updated on  29.09.2023
Most recent event   Tooltip07.06.2024Change - French titlepublished on 10.07.2024 [2024/28]
Applicant(s)For all designated states
Evonik Operations GmbH
Rellinghauser Straße 1-11
45128 Essen / DE
[2023/44]
Inventor(s)01 / XU, Liang
77382 The Woodlands / US
02 / SIRAK, Sofia
19462 Plymouth Meeting / US
03 / ZHUK, Iryna
18976 Warrington / US
04 / MEISTER, Claudia
64285 Darmstadt / DE
 [2023/44]
Representative(s)Evonik Patent Association
c/o Evonik Industries AG
IP Management
Bau 1042A/PB 15
Paul-Baumann-Straße 1
45772 Marl / DE
[2023/44]
Application number, filing date22170499.228.04.2022
[2023/44]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP4269531
Date:01.11.2023
Language:EN
[2023/44]
Search report(s)(Supplementary) European search report - dispatched on:EP27.10.2022
ClassificationIPC:C09K8/524
[2023/44]
CPC:
C09K8/524 (EP,BR); C09K8/584 (US)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2024/18]
Former [2023/44]AL,  AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  RS,  SE,  SI,  SK,  SM,  TR 
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:MULTIFUNKTIONELLES WACHSDISPERGIERMITTEL FÜR UNTERIRDISCHE CHEMISCHE ANWENDUNGEN[2023/44]
English:MULTIFUNCTIONAL WAX DISPERSANT FOR SUBTERRANEAN CHEMICAL APPLICATIONS[2023/44]
French:DISPERSANT DE CIRE MULTIFONCTIONNEL POUR APPLICATIONS CHIMIQUES SOUTERRAINES[2024/28]
Former [2023/44]DISPERSANT DE CIRE MULTIFONCTIONS POUR APPLICATIONS CHIMIQUES SOUTERRAINES
Examination procedure28.03.2024Amendment by applicant (claims and/or description)
28.03.2024Examination requested  [2024/18]
28.03.2024Date on which the examining division has become responsible
Fees paidRenewal fee
24.04.2024Renewal fee patent year 03
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[A]US2018023040  (SCHILLING MARTIN [DE], et al);
 [A]WO2020264073  (LOCUS OIL IP COMPANY LLC [US]);
 [A]US2021301191  (FARMER SEAN [US], et al)
by applicantDE2939519
 JPS60183032
 EP0282942
 JPH01304034
 EP0499434
 DE4127908
 FR2740779
 DE19600743
 DE19648439
 CN1337439
 WO03002700
 WO03006146
 KR20040033376
 EP1445302
 FR2855752
 JP2006070231
 JP2006083238
 JP2006274233
 JP2007181789
 JP2008062179
 EP1411111
 US7556654
 US7985722
 US8372786
 EP2786743
 EP2787065
 CN104650824
 US2017298710
 WO2019154970
 US2020071600
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.